JPH03226797A - Image processor - Google Patents

Abstract

PURPOSE:To improve the operability by equipping a controller with a grating point display processing means which determines an origin according to a set point and displays grating points at specific intervals in a specific range on the screen of a display device according to the origin. CONSTITUTION:The image processor is equipped with an input device 1, the controller 2 which performs image processing, and the display device 3. Then the controller 2 is equipped with the grating point display processing means, i.e. grid display processing means 6, which determines the origin for displaying a grid according to a point specified on the screen of the display device 3. In the range set according to the determined origin, grating points, i.e. a grid is displayed at the preset intervals. Therefore, the origin of the grid display can be moved optionally according to the shape and size of a graphic to be generated. Consequently, the operability of graphic generation is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image processing device that performs various graphical processing;
In particular, the present invention relates to an image processing device capable of displaying grid points (hereinafter referred to as a grid) that are even in the vertical and horizontal directions on a screen.

[Prior Art] Various image processing apparatuses are known that create and edit various figures such as straight lines, circles, and rectangles. When creating a graphic, a grid is displayed in a desired range of the display screen at desired intervals so that the graphic can be accurately created with specified dimensions. Then, when you specify a desired point on the screen using a coordinate input means such as a mouse, the specified point is rounded to the grid position that is the shortest distance, so a straight line of the desired length is created at the desired position. becomes possible. For example, when a grid G* = G eyes consisting of a cross-shaped pattern is displayed vertically and horizontally at predetermined intervals on the screen of the display device as shown in FIG. If a point P is specified, the chain point P is rounded and moved to the position of the grid G, which is the shortest distance from the point P, and is determined. If the dimension of the line segment is not an integral multiple of the grid interval, for example, specify one end point using the coordinate input means, further specify the direction of the line segment from that end point, and then use the numeric keypad to draw the line. It is possible to draw a diagram by inputting numerical values for minute dimensions.

[Problem to be Solved by the Invention] Now, the display of the grid is performed based on a predetermined origin, for example, the origin of the coordinates on the screen. However, in conventional image processing Since the origin was fixed, it was not always easy to create a figure if the dimensions of the figure were not an integral multiple of the grid interval. That is, let us now consider the case where a figure consisting of line segments 20 to 30 as shown in FIG. 4 is to be created. In FIG. 4, the unit of dimension is l. At this time, the dimensions of the line segments 20.2L and 22 are 50 am, 40 ms, and 30 ms, respectively, so they can be easily created by using a grid with an interval of 10 mm based on the origin 0 on the screen. In addition, as mentioned above, line segment 23 can be created by specifying the end point B of line segment 22, specifying the positive direction of the X axis, and further inputting the numerical value of 18.5 m per month. can. The same applies to line segments 24.25. In this way, line segments 20 to 25 of the figure in FIG.
For ~30, the size is an integer multiple of 51 years, so
It would be good if the grid spacing could be changed to 5 mm, but even if the grid spacing is changed, the grid will be displayed with the origin 0 on the screen as the origin, so point A in the figure will not be on the grid. Therefore, even if a grid with an interval of 5 mm is displayed, the dimensions must be entered numerically, and the operability is not necessarily good. Of course, in the case of Figure 4, it is possible to create it by displaying very fine grid grids with intervals of 0.5 ll■, but if the grid intervals are narrow, the screen becomes difficult to see, so On the contrary, it becomes a nuisance and is not a good idea.

The present invention solves the above-mentioned problems, and an object of the present invention is to provide an image processing device that can move the origin of a grid.

[Means for Solving the Problems] In order to achieve the above object, an image processing device of the present invention includes an input device, a control device that performs image processing, and a display device. The device includes at least a lattice point display processing means for determining an origin based on a set point and displaying lattice points at predetermined intervals in a predetermined range on the screen of the display device with the origin as a reference. Features.

[Operations and Effects of the Invention] The image processing device of the present invention includes an input device, a control device that performs image processing, and a display device. The control device includes a grid point display processing means, that is, a grid display processing means shown in FIG. 1, and the grid display processing means displays a grid based on points specified on the screen of the display device. Determine the origin for Then, lattice points, ie, grids, are displayed at preset intervals in a preset range using the determined origin as a reference. Therefore, the origin of the grid display can be arbitrarily moved according to the shape and size of the figure to be created, so the operability of figure creation is very good.

[Example] Examples will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an embodiment of an image processing apparatus according to the present invention, in which 1 is an input device, 2 is a control device, and 3
4 is a display device, 4 is a storage device, 5 is a video RAM (hereinafter referred to as VRAM), and 6 is a grid display processing means.

In the configuration shown in FIG. 1, the input device 1 is composed of a keyboard and a mouse, but other configurations may also be used. Bye. The control device 2 is capable of creating, deleting, and
When various edits and grids and keys are displayed,
It performs graphical processing that is normally performed in boat fishing, such as rounding of indicated points to grid positions, and includes a grid display processing means 6 for performing grid display processing. The display device 3 can be configured with a CRT or a liquid crystal display device, and may be one that performs monochrome display or may be one that performs color display. The storage device 4 stores the data of the created figures in actual size, and the figure data may be stored in bitmap format, vector data, or other formats. It is a good thing. The VRAM 5 is for displaying graphics on the screen of the display device 3, in which a predetermined range of graphic data from the graphic data stored in the storage device 4 is cut out by the control device 2 and written as a bitmap. It is. The graphic data written in the VRAM 5 is read out in synchronization with the scanning of the display device 3, and is input to the display device 3 to display the graphic.

Next, the operation of grid display and the operation of grid display processing 6 will be explained.

When the control device 2 determines that the input device 1 has instructed to display a grid, the control device 2 activates the grid display processing means 6. As a result, the grid display processing means 6 displays a request for setting the grid interval, display range, and origin coordinates of the grid at a predetermined position on the screen of the display device 3. The grid spacing may be set by entering numerical values using the numeric keypad of the input device 1, or by displaying a plurality of preset intervals from a submenu and selecting from among them. You can.

Setting the display range of the grid is done to display the grid only in the desired range.For example, you can select whether to display the entire grid or display it partially using the submenu, and if partial display is selected. In this case, a request is made to further set an area for grid display. The area may be a rectangular area, and the rectangular area can be set by specifying two diagonal points, as has been widely done in the past.

As described above, setting the grid origin is to set the position of the reference point when displaying the grid, and is performed by specifying a point on the screen using coordinate input means. Then, if a point is specified when no figure has been created, the grid display processing means 6 sets the specified point as the origin, and if a point is specified while any figure has been created, the grid display processing means 6 sets the point as the origin. In this case, the intersection point or end point of the figure that is the shortest distance from the specified point is searched, and the intersection point or end point is set as the origin.

Through the above processing, for example, as shown in Fig. 2(a), the grid interval is set to a predetermined value, for example, 2 IO points, and the display range of the grid is set to rectangle 10 without any graphics being created. , and if a point P is specified as the origin of the grid display, the grid display processing means 6 takes in these data and creates a cross-shaped grid of 10 mm within the range of the rectangular area 10 with the point P as the origin. Display in intervals. In addition, in FIG. 2(a), 8 indicates the screen of the display device 3. Further, since the operation for displaying the grid is well known, the details thereof will be omitted.

The above explanation is about the process for displaying the grid in a state where the grid is not displayed, but it is clear that the origin of the currently displayed grid can be moved by the process described above. That is, if the grid display menu is selected in a state where a grid with predetermined intervals is displayed in a predetermined range with a current point as the origin and some figure is being created, the grid display processing means 6 will be launched and you will be asked to enter the grid spacing, display range, and origin coordinates. Therefore, when the grid display range is set and a point on the screen is specified by the coordinate input means, the grid display processing means 6 takes in the set area data and the coordinates of the specified point, and Searching the figure to find the intersection point or end point on the figure that is the shortest distance from the specified point, determining the intersection point or end point on the figure as the origin for displaying a new grid,
A grid is displayed within the set area based on the determined grid display origin. At this time, if the grid interval is newly set, it will be the set interval, and if it is not newly set, it will be the previously set interval. Specifically, it is as follows. When creating the figure shown in Fig. 4, a grid is displayed on the entire screen at 10 mm intervals with a predetermined point 0 as the origin, and line segments 20 to 25
Suppose that the creation of . Next, we will create line segments 26 to 30, but since the dimensions of these line segments are all integer multiples of 5m, it is best to set the grid spacing to 5m. It can be seen that the origin can be set at point A in the figure. Therefore, if you select the grid display menu, specify point Q near point A, set the interval to 511, and set rectangular area 15 as the display range,
The grid display processing means 6 performs a grid display as shown in FIG. 2(b). According to this, line segment 2 in Figure 4
It will be clear that 6 to 30 can be easily made.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible. For example, it is clear to those skilled in the art that the shape of the grid is not limited to a cross shape but may be any shape. Further, in the above embodiment, the display range of the grid is set, but it may be fixedly displayed over the entire screen.In short, in the present invention, the display range of the grid is set. It is sufficient that the origin can be set arbitrarily.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of an image processing apparatus according to the present invention, FIG. 2 is a diagram showing an example of grid display according to the present invention, and FIG. 3 is a diagram for explaining grid rounding.
FIG. 4 is a diagram for explaining problems with conventional grid display. 1... Input device, 2... Control device, 3 river display device,
4...Storage device, 5...VRAM, 6...Grid display processing means.

Claims (1)

[Claims] (1) In an image processing device including an input device, a control device that performs image processing, and a display device, the control device includes:
The present invention is characterized by comprising at least lattice point display processing means for determining an origin based on the set point and displaying lattice points at predetermined intervals in a predetermined range on the screen of the display device with the origin as a reference. Image processing device.